Doom 2 Cheats

God mode:
After pausing gameplay by pushing START, press and hold L + R and push A, A, B, A, A, A, A, A.

Disable God mode:
After pausing gameplay by pushing START, press and hold L + R and push A, A, B, A, B, B, B, B.

Computer map:
After pausing gameplay by pushing START, press and hold L + R and push B, A, A, A, A, A, A, A

Radiation suit:
After pausing gameplay by pushing START, press and hold L + R and push B, B, A, A, A, A, A, A

Invincibility:
After pausing gameplay by pushing START, press and hold L + R and push B, B, B, A, A, A, A, A

Berserk:
After pausing gameplay by pushing START, press and hold L + R and push B, A, B, A, A, A, A, A

All weapons, items, keys:
After pausing gameplay by pushing START, press and hold L + R and push A, B, B, A, A, A, A, A.